YAML Formatter

Parse one YAML document and serialize it using the library's two-space block style. Aliases, custom tags and merge keys are rejected.

Free to useNo sign-upRuns in your browser

Enter your details

Enter the inputs, then select Format YAML.

Your result

Enter your details

Result will appear here

How YAML Formatter works

Parse one YAML document and serialize it using the library's two-space block style.

Aliases, custom tags and merge keys are rejected. Duplicate keys are rejected. Scalar spelling and quote style may change; comments are retained where supported.

Concept diagram for YAML Formatter, showing yaml source input and the supported output. — Concept diagram; the three operation images are actual browser captures.

How to use YAML Formatter

Start with your own input.

Enter yaml source

Replace the example with your yaml source.

Format YAML

YAML Formatter: input and settings in the implemented browser tool — Actual local browser view. Open the image to read it at full size.

Set the options

Check the source against the supported syntax and limits below.

Format YAML

YAML Formatter: tool result in the implemented browser tool — Actual local browser view. Open the image to read it at full size.

Run and check the output

Select Format YAML. Review formatted YAML with comments retained, then use Copy result or download the result file.

Format YAML

YAML Formatter: review the details in the implemented browser tool — Actual local browser view. Open the image to read it at full size.

When to use YAML Formatter

Format a configuration excerpt

To format a configuration excerpt, start with yaml source. Parse one YAML document and serialize it using the library's two-space block style.

Format YAML

Tabular source records represented by a spreadsheet grid. — Prepare tabular records. Concept illustration.

Expand an inline YAML collection

To expand an inline YAML collection, start with yaml source. Aliases, custom tags and merge keys are rejected.

Format YAML

Table columns and cell arrangements shown for review. — Inspect the columns. Concept illustration.

Read a compact YAML document

To read a compact YAML document, start with yaml source. Review formatted YAML with comments retained, then use Copy result or download the result file.

Format YAML

A table prepared for another data workflow. — Continue with the table output. Concept illustration.

How to read the result

Check what the output means.

Formatted YAML with comments retained. Parse one YAML document and serialize it using the library's two-space block style.

Aliases, custom tags and merge keys are rejected. Duplicate keys are rejected. Scalar spelling and quote style may change; comments are retained where supported.

Format YAML Format YAML

Table cells and source records represented for interpretation. — Understand rows and cells. Concept illustration.

Supported input and limits

Check the format before processing.

Aliases, custom tags and merge keys are rejected. Duplicate keys are rejected. Scalar spelling and quote style may change; comments are retained where supported.

Inputs and results are handled in this browser.

Format YAML Format YAML

Tabular structure reviewed before using the output. — Check structure and interpretation. Concept illustration.

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Format YAML with your input

Review formatted YAML with comments retained, then use Copy result or download the result file.

Format YAML

YAML Formatter: common questions

Answers about using YAML Formatter and understanding its results.

What does this tool support?

Aliases, custom tags and merge keys are rejected. Duplicate keys are rejected. Scalar spelling and quote style may change; comments are retained where supported.

Can I save the result?

Yes. Download the result file after processing. Text results also have Copy result. Processing uses local browser code; no account is required.